Abstract

In this paper, cagelike nanocomposites were prepared and their microwave absorption properties were investigated in detail. Dielectric constants and losses of the pure cagelike ZnOnanostructures were measured in a frequency range of . The measured results indicate that the cagelike ZnOnanostructures are low-loss material for microwave absorption in X band. However, the cagelike nanocomposites exhibit a relatively strong attenuation to microwave in X band. Such strong absorption is related to the unique geometrical morphology of the cagelike ZnOnanostructures in the composites. The microcurrent network can be produced in the cagelike ZnOnanostructures, which contributes to the conductive loss.